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...tp://www.icao.int/secretariat/PostalHistory/the_chicago_convention.htm The Postal History of ICAO : The Chicago Convention]
[[Category:International Civil Aviation Organization treaties|*]]
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...Netherlands had adopted the system in 1817). In 1863, the [[International Postal Union]] used grams to express permitted weights of letters.
[[Category:1875 treaties]]
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{{For|other treaties and conventions agreed in Berne|Berne Convention (disambiguation)}}
...ablished the General Postal Union, which is today known as the [[Universal Postal Union]].
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.../PostalHistory/the_warsaw_system_on_air_carriers_liability.htm|website=The Postal History of ICAO|publisher=International Civil Aviation Organization|accessd
[[Category:Treaties concluded in 1955]]
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*Service through postal channels (mail delivery or private courier)
...on permits the requesting judicial officer to "send" judicial documents by postal channels to states that have authorised this channel upon ratifying or acce
24 KB (3,179 words) - 01:00, 17 May 2026
